FR2412981A1 - FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATION - Google Patents
FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATIONInfo
- Publication number
- FR2412981A1 FR2412981A1 FR7738954A FR7738954A FR2412981A1 FR 2412981 A1 FR2412981 A1 FR 2412981A1 FR 7738954 A FR7738954 A FR 7738954A FR 7738954 A FR7738954 A FR 7738954A FR 2412981 A1 FR2412981 A1 FR 2412981A1
- Authority
- FR
- France
- Prior art keywords
- frequency
- phase
- discontinuity
- amplitude
- slowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
SYNTHETISEUR DE FREQUENCE A BOUCLES D'ASSERVISSEMENT DE PHASE MULTIPLES PRESENTANT LA PARTICULARITE DE PERMETTRE UNE LARGE EXPLORATION DE FREQUENCE SANS PHENOMENE DE DISCONTINUITE DE FREQUENCE OU D'AMPLITUDE. IL COMPORTE AU MOINS TROIS OSCILLATEURS ASSERVIS EN PHASE, LE PREMIER ASSURANT LA GENERATION DES PLUS PETITS PAS, LE SECOND CELLE DES GRANDS PAS ET LE TROISIEME EFFECTUANT LA SOMME ALGEBRIQUE DES FREQUENCES DES DEUX PREMIERS. LE PREMIER OSCILLATEUR O, LORS D'UNE INCREMENTATION POSITIVE DE LA FREQUENCE DE SORTIE, VOIT SA FREQUENCE AUGMENTER PUIS DIMINUER ET AINSI DE SUITE, EN DEUX MODES DE FONCTIONNEMENT SUCCESSIFS PARFAITEMENT ENCHAINES. APPLICATION A LA REALISATION D'UN VOBULATEUR PROGRAMMABLE.FREQUENCY SYNTHESIZER WITH MULTIPLE PHASE CONTROL LOOPS PRESENTING THE CHARACTERISTICS OF ALLOWING A WIDE FREQUENCY EXPLORATION WITHOUT THE PHENOMENON OF FREQUENCY OR AMPLITUDE DISCONTINUITY. IT INCLUDES AT LEAST THREE OSCILLATORS SLOWED IN PHASE, THE FIRST ENSURING THE GENERATION OF THE SMALLEST STEPS, THE SECOND THAT OF THE LARGE STEPS AND THE THIRD PERFORMING THE ALGEBRAIC SUM OF THE FREQUENCIES OF THE FIRST TWO. THE FIRST OSCILLATOR O, ON A POSITIVE INCREMENTATION OF THE OUTPUT FREQUENCY, SEES ITS FREQUENCY INCREASE THEN DECREASE AND SO ON IN TWO SUCCESSIVE OPERATING MODES PERFECTLY IN CONTINUATION. APPLICATION TO THE REALIZATION OF A PROGRAMMABLE VOBULATOR.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7738954A FR2412981A1 (en) | 1977-12-23 | 1977-12-23 | FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATION |
DE2851175A DE2851175C2 (en) | 1977-12-23 | 1978-11-27 | Circuit for frequency synthesis |
US05/967,752 US4225830A (en) | 1977-12-23 | 1978-12-08 | Plural phase locked loop frequency synthesizer |
GB7849499A GB2014003B (en) | 1977-12-23 | 1978-12-21 | Synthesizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7738954A FR2412981A1 (en) | 1977-12-23 | 1977-12-23 | FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATION |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2412981A1 true FR2412981A1 (en) | 1979-07-20 |
FR2412981B1 FR2412981B1 (en) | 1981-05-29 |
Family
ID=9199265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7738954A Granted FR2412981A1 (en) | 1977-12-23 | 1977-12-23 | FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATION |
Country Status (4)
Country | Link |
---|---|
US (1) | US4225830A (en) |
DE (1) | DE2851175C2 (en) |
FR (1) | FR2412981A1 (en) |
GB (1) | GB2014003B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2473818A1 (en) * | 1980-01-12 | 1981-07-17 | Sony Corp | DOUBLE SUPERHETERODYNE RECEIVER |
WO1995006359A1 (en) * | 1993-08-27 | 1995-03-02 | H.U.C. Elektronik Gmbh | Pll system |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4388597A (en) * | 1980-06-03 | 1983-06-14 | Motorola Inc. | Frequency synthesizer having plural phase locked loops |
DE3231564A1 (en) * | 1982-08-25 | 1984-03-01 | Siemens AG, 1000 Berlin und 8000 München | Radio system |
US4785260A (en) * | 1986-03-18 | 1988-11-15 | International Mobile Machines Corporation | Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels |
US4845443A (en) * | 1988-03-25 | 1989-07-04 | General Dynamics Corporation, Pomona Div. | Low noise multi-band channelized microwave frequency synthesizer |
DE3837246A1 (en) * | 1988-10-28 | 1990-05-03 | Siemens Ag | Frequency generator |
US5097219A (en) * | 1988-12-15 | 1992-03-17 | Mitsubishi Denki Kabushiki Kaisha | Pll for controlling frequency deviation of a variable frequency oscillator |
US4994762A (en) * | 1989-11-20 | 1991-02-19 | Motorola, Inc. | Multiloop synthesizer with optimal spurious performance |
JP2526847B2 (en) * | 1993-05-24 | 1996-08-21 | 日本電気株式会社 | Digital wireless telephone |
GB2340679B (en) * | 1998-08-17 | 2001-11-28 | Ericsson Telefon Ab L M | Frequency synthesis |
US7242229B1 (en) | 2001-05-06 | 2007-07-10 | Altera Corporation | Phase locked loop (PLL) and delay locked loop (DLL) counter and delay element programming in user mode |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1383227A (en) * | 1962-11-30 | 1964-12-24 | Philips Nv | Multi-channel generator |
NL286207A (en) * | 1962-11-30 | |||
US3319178A (en) * | 1965-09-27 | 1967-05-09 | Collins Radio Co | Plural loop automatic phase control |
US3546617A (en) * | 1968-11-26 | 1970-12-08 | Rca Corp | Digital frequency synthesizer |
DE2061050A1 (en) * | 1969-12-12 | 1971-06-24 | Amalgamated Wireless Australas | Frequency synthesizer |
NL163396C (en) * | 1974-04-22 | 1980-08-15 | Philips Nv | MULTI-CHANNEL GENERATOR. |
DE2510261C2 (en) * | 1975-03-08 | 1981-12-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method and circuit for carrying out the method for stabilizing the frequency of an oscillator |
GB1477584A (en) * | 1975-10-14 | 1977-06-22 | Mullard Ltd | Phase comparator |
-
1977
- 1977-12-23 FR FR7738954A patent/FR2412981A1/en active Granted
-
1978
- 1978-11-27 DE DE2851175A patent/DE2851175C2/en not_active Expired
- 1978-12-08 US US05/967,752 patent/US4225830A/en not_active Expired - Lifetime
- 1978-12-21 GB GB7849499A patent/GB2014003B/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2473818A1 (en) * | 1980-01-12 | 1981-07-17 | Sony Corp | DOUBLE SUPERHETERODYNE RECEIVER |
WO1995006359A1 (en) * | 1993-08-27 | 1995-03-02 | H.U.C. Elektronik Gmbh | Pll system |
Also Published As
Publication number | Publication date |
---|---|
DE2851175A1 (en) | 1979-06-28 |
GB2014003A (en) | 1979-08-15 |
GB2014003B (en) | 1982-06-30 |
US4225830A (en) | 1980-09-30 |
FR2412981B1 (en) | 1981-05-29 |
DE2851175C2 (en) | 1983-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2412981A1 (en) | FREQUENCY SYNTHESIZER WITH MULTIPLE LOOPS OF PHASE SLOWING, AGENCY TO AVOID ANY DISCONTINUITY OF FREQUENCY OR AMPLITUDE IN A WIDE RANGE OF FREQUENCY VARIATION | |
CA1111952A (en) | Radar altimeter simulator | |
ATE126950T1 (en) | BAND SWITCHING OF A TWO-DIRECTION RADIO WITH PLL. | |
US3529260A (en) | Oscillator with frequency dividers for providing tunable sinusoidal outputs | |
DE4341179C2 (en) | Acoustic surface wave oscillator | |
JPS5531304A (en) | Reception frequency selecting device | |
JPH0353015U (en) | ||
RU93040630A (en) | DIGITAL FREQUENCY SYNTHESIZER | |
GB1261386A (en) | Sinusoidal wave generator | |
JPS532060A (en) | High harmonic generator | |
SU584261A1 (en) | Non-linear distortion calibrator | |
RU8850U1 (en) | FREQUENCY SYNTHESIS | |
Gismero et al. | Harmonic describing function: Application to microwave oscillator's design | |
SU794605A1 (en) | Quantum time-piece | |
MURTHY et al. | Novel method of sinusoidal frequency division | |
KR930003564A (en) | Devices with phase-locked loops | |
Lewis | Phase-locked upconvertors in synthesisers for agile pulse-compression radars | |
SU682995A2 (en) | Complex oscillator | |
KLEINBERG | JFET reflection oscillator(Patent) | |
IL43646A (en) | Oscillator arrangement phase guided by reference signal | |
JPH0191312U (en) | ||
SU581570A1 (en) | Switched-over frequency selecting device | |
Kreer | Methods of extending the range of frequency counters | |
RU93030307A (en) | DIGITAL FREQUENCY SYNTHESIZER | |
JPS5450259A (en) | Oscillator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
TP | Transmission of property |